- replace the XMTR UNIT-BRK PEDAL (9GG) (Ref. AMM TASK 32-42-47-000-001) and (Ref. AMM TASK 32-42-47-400-001).
(2) If the fault continues:
- if the source of the message is BSCU SYS1, do a check and repair the wiring from the BSCU (10GG) to the transmitter unit (9GG) pins AA/5K, 3K, 1K, 7K, 8K, 6K, 4K, 2K to pins A/M, A, G, U, V, N, B, K (Ref. ASM 32-42/01).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞32-42-00∞∞∞∞∞∞∞∞∞∞Page 244
May 01/05 CES
- if the source of the message is BSCU SYS2, do a check and repair the wiring from the BSCU (10GG) to the transmitter unit (9GG) pins AA/5A, 3A, 1A, 7A, 8A, 6A, 4A, 2A to pins A/P, C, H, Y, Z, R, D, J (Ref. ASM 32-42/01).
R **ON A/C 106-149, 221-299, 401-499,
A. If the test gives the maintenance message BRK PEDAL XMTR(9GG)/BSCU(10GG):
- replace the BSCU (10GG) (Ref. AMM TASK 32-42-34-000-001) and (Ref. AMM TASK 32-42-34-400-001)
(1) If the fault continues:
- replace the XMTR UNIT-BRK PEDAL (9GG) (Ref. AMM TASK 32-42-47-000-001) and (Ref. AMM TASK 32-42-47-400-001).
(2) If the fault continues:
- if the source of the message is BSCU SYS1, do a check and repair the wiring from the BSCU (10GG) to the transmitter unit (9GG) pins AA/5K, 3K, 1K, 7K, 8K, 6K, 4K, 2K to pins A/M, A, G, U, V, N, B, K (Ref. ASM 32-42/01).
- if the source of the message is BSCU SYS2, do a check and repair the wiring from the BSCU (10GG) to the transmitter unit (9GG) pins AA/5A, 3A, 1A, 7A, 8A, 6A, 4A, 2A to pins A/P, C, H, Y, Z, R, D, J (Ref. ASM 32-42/01).
**ON A/C ALL
B. Do the test given in Para. 3.A.
TASK 32-42-00-810-828
Loss of the 28VDC Supply of the BSCU SYS 1
1. Possible Causes
_______________
- BSCU (10GG)
- PRESS XDCR-NORM BRK WHEEL 3 (12GG)
- PRESS XDCR-NORM BRK WHEEL 2 (13GG)
- BOARD-ANN LT TEST & INTFC (1LP)
- wiring from the BSCU (10GG) pin AB/15K to the ground terminal
- SW-A/SKID & NW STRG (5GG)
- wiring from the BSCU (10GG) to the switch (5GG)
- wiring from the switch (5GG) pin 1E to the circuit breaker (2GG)
- C/B - HYD/BRK & STRG/SYS 1/IND & SPLY (2GG)
- RELAY-WHEEL 1 SPEED (25GG)
- wiring between the circuit breaker (2GG) and the six units
- C/B-HYD/BRK & STRG/SYS 1/IND & SPLY (2GG)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 32-42-21-000-001 Removal of the Normal-Brake Pressure Transducer AMM 32-42-21-400-001 Installation of the Normal-Brake Pressure Transducer AMM 32-42-34-000-001 Removal of the Braking/Steering Control Unit (BSCU)
(10GG) AMM 32-42-34-400-001 Installation of the Braking/Steering Control Unit
(BSCU) (10GG)
AMM 32-46-00-740-001 BITE Test of the BSCU
AMM 33-14-33-000-001 Removal of the Annunciator-Light Test and
Interface-Board (1LP, 2LP, 3LP, 4LP, 5LP, 6LP, 7LP, R 8LP, 9LP, 10LP, 11LP, 12LP, 18LP, 19LP, 20LP) AMM 33-14-33-400-001 Installation of the Annunciator-Light Test and Interface-Board (1LP, 2LP, 3LP, 4LP, 5LP, 6LP, 7LP,
R 8LP, 9LP, 10LP, 11LP, 12LP, 18LP, 19LP, 20LP) ASM 32-42/01 ASM 32-42/03
3. Fault Confirmation
__________________
A. Test
(1) Not applicable
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞32-42-00∞∞∞∞∞∞∞∞∞∞Page 246
May 01/05 CES
4. Fault Isolation
_______________
A. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
121VU HYDRAULIC/BRAKING AND STEERING/SYS1/IND AND/SPLY 2GG M33
B. Do the BITE test of the BSCU with the BSCU channel that is the source of the fault message (Ref. AMM TASK 32-46-00-740-001).
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本文链接地址：A320 Trouble Shooting Manual 排故手册 起落架 LANDING GEAR 1(111)
